SmartLine 21' Round Antilles Dolphin Overlap Above-Ground Swimming Pool Liner — 48"/52" Height, 20 Gauge

Made in the USA by pool-industry professionals with over 50 years of experience, the SmartLine 21' Round Antilles Dolphin Overlap liner is designed for 48"/52" height above-ground pools. Built from 100% virgin vinyl, this 20 Gauge liner resists punctures, cracks and fading and includes built-in UV protection. Hand-folded during manufacturing to minimize wrinkles and installation imperfections, it installs smoothly for a clean, professional look. The liner is formulated to withstand harsh pool chemicals and prolonged sun exposure, performing across a wide temperature range from -50°F to 130°F. A gasket set is included to prevent leaks and fits all thru-wall skimmers and water return lines.